“When residential apartment buildings designated for permanent occupancy are illegally converted into hotels, they create unsafe, hazardous conditions and threaten the character of our neighborhoods,” Mayor Bloomberg said in a statement to The Real Deal.

New Yorkers may think they’ll cash in by renting out their living rooms to weekend tourists on airbnb, but beware the $800 to $2,400 violations if you’re caught renting out a room for less than 30-days.

Still, with rents skyrocketing and a lack of affordable hotels in Manhattan, it seems like an ingenious scheme to make some cash.